December Weather in Topanga, United States

Last updated: February 24, 2025

In Topanga, United States, December brings a delightful mix of winter charm and mild temperatures. With a maximum of 27°C (80°F) and an average of 14°C (57°F), the weather is generally pleasant, although temperatures can dip to a minimum of 5°C (42°F) at night. This month also sees some rainfall, with 80 mm (3.1 in) of precipitation spread over about 5 days, contributing to a relatively humid environment with levels reaching 71%. Visitors can expect a refreshing blend of cool, crisp air and warm sunny days, making it a unique time to explore the natural beauty of the area.

December Temperature in Topanga

In Topanga, United States, December ushers in a cool yet comfortable climate as temperatures dip slightly with a minimum of 5°C (42°F). The average temperature holds steady at 14°C (57°F), providing a crisp backdrop for the festive season, while daytime highs reach around 27°C (80°F), offering pleasant afternoons for outdoor activities. This month reflects a gradual transition from the warmer months, as the temperature begins to decline towards winter, creating a lovely balance of refreshing coolness and inviting warmth. December's mild weather is perfect for enjoying the natural beauty of Topanga, inviting both residents and visitors to embrace the stunning landscape amidst the season's charm.

December Weather in Topanga: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Topanga, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec565758626368727372686357
Data source: Temperature data for Topanga generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Topanga

December in Topanga, United States, marks a notable shift in precipitation patterns, as it emerges as the wettest month of the year, with 80 mm (3.1 inches) of rain over 5 days. This increase in precipitation contrasts sharply with the dry summer months, where barely any rain falls from June to September. Following the relatively low totals of autumn, December’s rainfall underscores the region's seasonal variability and the onset of winter weather. Additionally, this month not only highlights a significant uptick in moisture but also indicates the importance of winter rains in replenishing local ecosystems. Overall, the trend suggests that December serves as a critical transition point, paving the way for the wetter months ahead.

December Precipitation Trends in Topanga

The chart displays monthly precipitation patterns in Topanga, with values for each month alongside December's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec6853711510121271780
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Topanga

In Topanga, United States, December brings a humidity level of 71%, which maintains a trend seen throughout the year—consistently elevated moisture in the air. The month begins a gradual shift, moving away from the lower humidity experienced in the fall, peaking with higher levels in January and February. Interestingly, while summer months like July and August experience slightly lower humidity (down to 69%), the transition into winter sees a bounce back to the mid-70s in early winter. Overall, December's level reflects a stable middle ground, inviting a crispness to the air as the year ends, yet still echoing the lingering warmth of the preceding months.

December Average Humidity in Topanga

This chart illustrates the average monthly humidity levels in Topanga, with December's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how December's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec74%79%75%71%70%72%73%69%68%67%68%71%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Topanga

In December, Topanga experiences a moderate UV Index of 4, similar to the start of the year in January. With a corresponding burn time of 30 minutes, residents and visitors are reminded that while sun exposure is manageable, it still requires caution. The trend for the fall and winter months reflects a noticeable decrease from the peak intensity seen earlier in the year, with the UV Index gradually declining from its summer extremes of 11 in July to the more moderate levels observed in December. This seasonal variation underscores the importance of monitoring UV levels to ensure safe sun practices throughout the year. For more information, check out Topanga UV Index.

Maximum UV Index Levels in Topanga for December

The chart shows the monthly maximum UV Index (UVI) for Topanga in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec46891011111010754
Data source: Topanga December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Topanga

In Topanga, United States, the month of December brings a cozy embrace of sunshine with approximately 225 hours of daylight. As the year winds down, this marks a noticeable decline from the peak summer months, notably July and June, which bask in a remarkable 380 and 364 hours of sun, respectively. The trend showcases a gradual tapering of sunlight as the seasons shift, with May enjoying 348 hours before summer settles in. While December may offer fewer sunlit hours compared to earlier in the year, it continues to illuminate the charm of Topanga's landscape, providing a gentle reminder of the rhythmic dance between nature's cycles.

Monthly Sunshine Duration in Topanga: December Highlighted

The December sunshine duration represents the total number of hours Topanga experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec187h228h281h314h348h364h380h360h314h292h255h225h
Data source: Topanga December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Topanga During December

In Topanga, United States, the likelihood of sunny weather experiences a notable decline as the year wraps up, with December offering only a 51% chance of sunshine. This marks a significant drop from the sunnier months of late summer and early autumn, where chances peaked at 76% in September and hovered around 70% in October. Interestingly, while December's sunshine probability dips below half, it aligns closely with the wetter spring months like April and May, which see 57% and 56% chance of sun, respectively. This trend suggests that as the holiday season approaches, residents might want to prepare for cooler and cloudier days, making sunny breaks a delightful surprise.

Percentage of Sunny Days in December in Topanga

The chart illustrates the percentage of sunny days in Topanga throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Topanga experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec64%68%73%58%56%67%69%73%76%70%67%51%
Data source: Topanga December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Topanga in December

As December settles in Topanga, the daylight begins to wane, marking the end of the year with just 9 hours of sunlight. This reduction in daylight hours follows a gradual decline from the summer months of June and July, which bask in 14 hours of golden light. The trend clearly illustrates a shift from the vibrant days of spring and summer, where 13 to 14 hours of daylight dominate, to the shorter, cozier winter days. As the year progresses from October’s 11 hours to November’s 10 hours, December stands out as the month of least daylight, inviting a reflective pause as nature prepares for the rejuvenation that comes with winter's end.

Average Daylight Hours in Topanga for December

The chart illustrates the variation in daylight duration in Topanga throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 9m10h 58m11h 59m13h 3m13h 56m14h 22m14h 7m13h 20m12h 19m11h 17m10h 22m9h 54m
Data source: Topanga daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Topanga

As December blankets Topanga, the winds gently whisper at an average speed of 2.6 m/s (6 mph), creating a serene ambiance for locals and visitors alike. This slight uptick from the previous month’s 2.2 m/s (5 mph) reflects a common trend in the winter months, where the wind speeds tend to stabilize around the 6 mph mark. It’s noteworthy that, while the summer months saw the calmest breezes with averages dipping to 2.3 m/s (5 mph) in July and August, the transition into winter brings a refreshing change. Overall, December’s winds evoke a sense of calm, perfect for enjoying Topanga’s stunning landscapes, while hinting at the gentle shifts that characterize the region throughout the year.

Average December Wind Speed in Topanga

The chart displays monthly wind speed patterns in Topanga, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.92.62.82.72.52.52.32.32.22.52.22.6 m/s
Data source: Topanga December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Topanga Compares to Other Months

The weather in Topanga changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Topanga and find detailed weather information for every month.

In comparison to December, January displays a notable increase in maximum temperatures, rising from 27°C (80°F) to 29°C (84°F), while maintaining the same minimum temperature of 5°C (42°F). Both months share an average temperature of 14°C (57°F), indicating a consistent climate. Precipitation decreases slightly in January to 68 mm (2.7 in) over 4 days, compared to December's 80 mm (3.1 in) over 5 days. Additionally, January experiences a slight uptick in humidity at 74%, compared to 71% in December. For more detailed insights into January weather, you can check Topanga weather in January.

In December, the weather features a minimum temperature of 5°C (42°F) and an average high of 27°C (80°F), with total precipitation reaching 80 mm (3.1 in) over five days. The humidity level during this month is around 71%. In contrast, February sees a slightly lower minimum temperature of 4°C (39°F) while maintaining an average high of 28°C (83°F). February has less rainfall, with only 53 mm (2.1 in) also spread over five days, and humidity increases to 79%. For more details on February weather conditions, you can check Topanga weather in February.

In December, temperatures typically range from a minimum of 5°C (42°F) to a maximum of 27°C (80°F), with an average of 14°C (57°F). The month sees about 80 mm (3.1 in) of precipitation over approximately 5 days, resulting in a humidity level of 71%.

In contrast, March features slightly warmer temperatures, with a minimum of 6°C (43°F) and the same maximum of 27°C (80°F), while still averaging 14°C (58°F). March has a lower total precipitation of 71 mm (2.8 in) spread over 8 days, leading to a slightly higher humidity of 75%.

For more details, you can check Topanga weather in March.

December and April exhibit notable differences in weather patterns. In December, temperatures range from a minimum of 5°C (42°F) to a maximum of 27°C (80°F), with an average of 14°C (57°F). This month experiences more substantial rainfall, accumulating around 80 mm (3.1 in) over five days, resulting in a higher humidity level of 71%. In contrast, April sees a slight increase in minimum and average temperatures, with the minimum at 9°C (49°F) and an average of 17°C (62°F). The maximum temperature can reach up to 33°C (92°F), indicating a warmer climate. Additionally, April enjoys significantly less precipitation, totaling only 15 mm (0.6 in) over just two days, while maintaining a similar humidity level of 70%. For more details, check out Topanga weather in April.

December and May in Topanga present quite different weather conditions. In December, temperatures range from a minimum of 5°C (42°F) to a maximum of 27°C (80°F), with an average of 14°C (57°F), alongside higher precipitation levels of 80 mm (3.1 in) over about 5 days and a relative humidity of 71%. In contrast, May enjoys warmer temperatures with a minimum of 10°C (50°F) and a maximum reaching 31°C (88°F), averaging at 17°C (63°F). Precipitation in May is significantly lower at just 10 mm (0.4 in) and occurs on only 1 day, while humidity remains similar at 70%. For a more detailed look at May weather in this area, visit Topanga weather in May.

In December, the weather is generally cooler, with temperatures ranging from a minimum of 5°C (42°F) to a maximum of 27°C (80°F) and an average of 14°C (57°F). This month also sees more precipitation, with about 80 mm (3.1 in) over five days, contributing to a relatively high humidity level of 71%. In contrast, June presents a warmer climate, with temperatures ranging from a minimum of 13°C (56°F) to a maximum of 33°C (91°F) and an average of 20°C (68°F). The month is notably drier, with only 1 mm (0.1 in) of precipitation over zero days, resulting in a humidity level that remains similar at 72%. For more detailed insights, you can check out Topanga weather in June.

December and July showcase contrasting weather patterns, with December experiencing milder temperatures that range from a minimum of 5°C (42°F) to a maximum of 27°C (80°F). This month also brings an average temperature of 14°C (57°F) and approximately 80 mm (3.1 in) of precipitation across five days, coupled with a humidity level of 71%. In stark contrast, July offers much warmer conditions, with temperatures ranging from a minimum of 16°C (60°F) to a scorching maximum of 38°C (101°F) and an average of 22°C (73°F). Precipitation is minimal in July, totaling just 2 mm (0.1 in) over no rainy days, and humidity remains close at 73%. For more information on July weather, you can visit Topanga weather in July.

December and August exhibit notably different weather patterns. In December, temperatures range from a minimum of 5°C (42°F) to a maximum of 27°C (80°F), with an average of 14°C (57°F). The month is marked by increased precipitation of 80 mm (3.1 in) over approximately five days, resulting in a humidity level of 71%. In contrast, August offers much warmer temperatures, with a minimum of 16°C (61°F), an average of 23°C (74°F), and a peak of 34°C (93°F). This month sees virtually no rain, with only 1 mm (0.0 in) of precipitation recorded across zero days, while humidity remains slightly lower at 69%. For more details on August's weather, you can visit Topanga weather in August.

When comparing the weather in December and September, notable differences emerge. December experiences a milder range of temperatures, with a minimum of 5°C (42°F) and a maximum of 27°C (80°F), while averaging 14°C (57°F). In contrast, September boasts significantly warmer temperatures, with a minimum of 14°C (57°F) and a peak reaching 37°C (100°F), resulting in an average of 22°C (72°F). Rainfall is more prevalent in December, with 80 mm (3.1 in) over five days, whereas September typically enjoys dry conditions with only 2 mm (0.1 in) of precipitation across no rainy days. Humidity levels are relatively similar, showing 71% in December compared to 68% in September. For a closer look at September weather specifics, you can check out Topanga weather in September.

In comparing the weather between December and October, one can observe notable differences. December experiences a milder temperature range with a minimum of 5°C (42°F) and an average of 14°C (57°F), while October is warmer, with temperatures ranging from a minimum of 10°C (50°F) to an average of 20°C (69°F), peaking at a high of 37°C (99°F). Precipitation is significantly higher in December, with around 80 mm (3.1 in) over five days compared to just 7 mm (0.3 in) over one day in October. Humidity levels are relatively similar, with December at 71% and October at 67%. For further details about October's climate, you can visit Topanga weather in October.

December weather features a slightly lower minimum temperature of 5°C (42°F) compared to November's 6°C (44°F), while the average temperature decreases from 17°C (63°F) in November to 14°C (57°F) in December. The maximum temperature also drops significantly, from 32°C (89°F) in November to 27°C (80°F) in December. Precipitation increases considerably between the two months, with December receiving 80 mm (3.1 in) over 5 days, whereas November experiences only 17 mm (0.7 in) across a single day. Humidity levels are marginally higher in December at 71% compared to 68% in November, contributing to a more humid feel during the last month of the year. For a more detailed look at November's climate, check out Topanga weather in November.

Compare Topanga's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Topanga

As December envelops Topanga, the weather showcases a marked contrast to the rest of the year. With daytime temperatures peaking around 27°C (80°F), yet dipping to a chilly 5°C (42°F) at night, this month offers a refreshing blend of warmth and coolness. The average temperature sits at a comfortable 14°C (57°F), inviting residents and visitors alike to enjoy the outdoors before winter fully sets in. The increased humidity of 71% paired with about 80 mm (3.1 in) of rainfall across just 5 days signifies a shift into the cozy, rain-kissed atmosphere of the season. For more insights on yearly variations, explore Topanga Climate.